Norwich Damp and Mould: Social Housing, Flats and Flint-and-Timber Homes

Over 30% of Norwich households rent from a social landlord, well above the England figure of 17.1%, and 35% of homes are flats (England 21.4%). In a city with a medieval, Georgian and Victorian core, that mix shapes where damp and mould turns up and who is responsible for fixing it.

Norwich in numbers

• Private rented households: 26.9% (England 20.5%); social rented: 30.3% (England 17.1%)
• Terraced homes: 32.0% (England 23.0%); flats: 35.0% (England 21.4%)
• Homes with no central heating: 1.5% (England 1.5%)
• Overcrowded households: 2.8% (England 4.4%)
• River or sea flood risk: 0.4% (England 1.9%); surface-water risk: 4.8% (England 5.9%)
• Rainfall: about 684 mm a year at Coltishall, roughly nine miles away

Why does the low flood risk matter?

Flood risk from rivers and the sea is well below the England figure, and overcrowding is below it too. That points a landlord towards the building itself: leaks, failed gutters, cold bridging and poor ventilation are more likely culprits than rising water or too many occupants.

Flats and shared buildings

With 35% of homes being flats, a leak or damp problem often starts outside the flat that shows it: a roof, a neighbouring property, a shared pipe or a blocked communal drain. Where the cause sits with a freeholder or managing agent, a landlord should escalate in writing, keep the dates and chase. Sealed modern flats also need working extraction, because without it condensation builds up even in a sound building.

Flint and timber-frame in the oldest homes

In the oldest properties, flint and timber-frame construction is common. These walls are designed to let moisture pass through them, so cement render, waterproof paints and sealed insulation can trap damp inside. Use breathable repairs, check whether the building is listed or in a conservation area before work, and ventilate sensibly.

What landlords must do

The Homes (Fitness for Human Habitation) Act 2018 requires a rented home to be fit to live in, and the council can assess damp and mould under the Housing Health and Safety Rating System.

Awaab's Law currently applies to social housing, which is over 30% of Norwich households, with private landlords expected to follow. Our guide to Awaab's Law and the private rented sector explains the current position.

To find a specialist, see our Norwich damp and mould page.